4 layers135.2 × 46.8 mm
Gd power supply board pcb
baldengineer/Mega-IIe
Using the Mega II from a IIgs to make a Apple IIe compatible computer: The Mega IIe!
161 parts33MIT
4 layers101.6 × 101.6 mm
Simple Polaroid Trigger
JWehle/polaroid-triggerAutomated trigger board for a polaroid SX-70 type camera.
- Size
- 101.6 × 101.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 80
- Nets
- 66
- Pads
- 235
- Tracks, vias
- 346, 40
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 25 Jan 2025
- Updated
- 2 Feb 2025
Overview
Simple Polaroid Trigger is an open-source printed circuit board by JWehle, from the JWehle/polaroid-trigger repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 101.6 × 101.6 mm with 80 parts on 66 nets, routed with 346 tracks and 40 vias.
It is built around the PAM8302AADCR, MMBT3904 and MMBT3906, with the BK-18650-PC4, FDS9435A and JS102011SAQN among its other parts. Its parts include 29 resistors, 10 capacitors, 8 transistors, 4 ICs and 2 diodes.
Main components
8
PAM8302AADCR
SOP-8-40℃~+85℃ 0.3% 1-Channel 2.5Wx1@4Ω 2V~5.5V 4mA 50dB 80dB 85% Class D Filterless architecture SOP-8 Audio Amplifiers ROHSDiodes IncorporatedAudio Amplifiers
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)MMBT3906
SOT-23-55℃~+150℃ 1 PNP 100 100nA 200mA 200mW 300MHz 300mV 40V 5V PNP SOT-23 Bipolar (BJT) ROHSTWGMCBipolar (BJT)
BK-18650-PC4
插件插件 Button And Strip Battery Connector ROHSMPDButton And Strip Battery Connector
FDS9435A
SO-8-55℃~+175℃ 1 P-Channel 1.7V 14nC 2.5W 30V 5.3A 50mΩ@10V 528pF 70pF SO-8 MOSFETs ROHSonsemiMOSFETs
JS102011SAQN
SMD-40℃~+85℃ 3.5mm 300mA 5,000 cycles 6V 9mm Black Rectangular Columnar SMD(SMT) Tab SPDT Surface Mount, Right Angle SMD Slide Switches ROHSC&KSlide Switches
JS202011JCQN
SMD-40℃~+85℃ 3.6mm 300mA 5,000 cycles 5.5mm 6V 9mm Black DPDT J-Lead Rectangular Columnar Surface Mount,Vertical SMD Slide Switches ROHSC&KSlide Switches
QM6006D-VB
TO-252MOSFETsVBsemi Elec
README
README.mdpolaroid-trigger
Automated trigger board for a polaroid SX-70 type camera.
Parts
80| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R2, R5, R6, R9, R10, R15, R16, R19, R21, R22, R24, R25, R27, R28, R29 |
| 16 | 5016 | Jarrett_Footprint_Library:TestPoint_Keystone_5016_Compact | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14, TP15, TP16 |
| 8 | 1K | Resistor_SMD:R_0603_1608Metric | R3, R4, R7, R8, R11, R12, R13, R23 |
| 4 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C6, C9, C10 |
| 4 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3, C7, C8 |
| 4 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q2, Q4, Q7, Q8 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C4 |
| 2 | MMBT3906 | Package_TO_SOT_SMD:SOT-23 | Q3, Q5 |
| 1 | 0 | Resistor_SMD:R_0603_1608Metric | R20 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R17 |
| 1 | 1Meg | Resistor_SMD:R_0603_1608Metric | R26 |
| 1 | 20K | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 614105150721 | Connector_USB:USB_Micro-B_Wuerth_614105150721_Vertical_CircularHoles | J2 |
| 1 | BAV103-GS08 | Diode_SMD:D_MiniMELF | D2 |
| 1 | BK-18650-PC4 | Jarrett_Footprint_Library:BK-18650-PC4_MPD | B1 |
| 1 | DE9_Receptacle_MountingHoles | Connector_Dsub:DSUB-9_Female_Horizontal_P2.77x2.84mm_EdgePinOffset4.94mm_Housed_MountingHolesOffset7.48mm | J1 |
| 1 | FDS9435A | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | Q6 |
| 1 | JS102011SAQN | Button_Switch_SMD:SW_SPDT_CK-JS102011SAQN | SW1 |
| 1 | JS202011JCQN | Button_Switch_SMD:SW_DPDT_CK_JS202011JCQN | SW2 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | MCP73123T-22SI/MF | Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm | U3 |
| 1 | Motor_Servo | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | M1 |
| 1 | OWS-142037TA-4 | Jarrett_Footprint_Library:OWS-142037TA-4 | LS1 |
| 1 | PAM8302AAD | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | QM6006D | Package_TO_SOT_SMD:TO-252-2 | Q1 |
| 1 | R_Photo | LED_THT:LED_D5.0mm | R18 |
| 1 | TLV1701AIDBVT | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U4 |
| 1 | ~ | Jarrett_Footprint_Library:ESP32_MODULE | U1 |
Questions
How big is the Simple Polaroid Trigger PCB?
It measures 101.6 × 101.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Simple Polaroid Trigger use?
80 parts, built around the PAM8302AADCR, MMBT3904, MMBT3906 and BK-18650-PC4. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Simple Polaroid Trigger KiCad files?
From the JWehle/polaroid-trigger repository on GitHub, at the commit this page was made from: the board is Simple_Polaroid_Trigger.kicad_pcb and its schematic Simple_Polaroid_Trigger.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Simple Polaroid Trigger design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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